I'm trying to render the scene to a png with a transparent background, however, I can't even get the screenshots to show right. I have it added to the camera but all I get is a grey screenshot
I get 2 errors:
ReadPixels was called to read pixels from system frame buffer, while not inside drawing frame.
UnityEngine.Texture2D:ReadPixels(Rect, Int32, Int32)
HiResScreenShots:LateUpdate() (at Assets/HiResScreenShots.cs:29)
and: Trying to read pixel out of bounds
I found the code from this [question][1]
using UnityEngine;
using System.Collections;
public class HiResScreenShots : MonoBehaviour {
public int resWidth = 2550;
public int resHeight = 3300;
private bool takeHiResShot = false;
public static string ScreenShotName(int width, int height) {
return string.Format("{0}/Screenshots/screen_{1}x{2}_{3}.png",
Application.dataPath,
width, height,
System.DateTime.Now.ToString("yyyy-MM-dd_HH-mm-ss"));
}
public void TakeHiResShot() {
takeHiResShot = true;
}
void LateUpdate() {
takeHiResShot |= Input.GetKeyDown("k");
if (takeHiResShot) {
RenderTexture rt = new RenderTexture(resWidth, resHeight, 24);
camera.targetTexture = rt;
Texture2D screenShot = new Texture2D(resWidth, resHeight, TextureFormat.RGB24, false);
camera.Render();
RenderTexture.active = rt;
screenShot.ReadPixels(new Rect(0, 0, resWidth, resHeight), 0, 0);
camera.targetTexture = null;
RenderTexture.active = null; // JC: added to avoid errors
Destroy(rt);
byte[] bytes = screenShot.EncodeToPNG();
string filename = ScreenShotName(resWidth, resHeight);
System.IO.File.WriteAllBytes(filename, bytes);
Debug.Log(string.Format("Took screenshot to: {0}", filename));
takeHiResShot = false;
}
}
}
[1]: http://answers.unity3d.com/questions/22954/how-to-save-a-picture-take-screenshot-from-a-camer.html
I'm unsure what I'm doing wrong, any help would be appreciated
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